The Solitary Sin
- वर्ष: 1919
- देश: United States of America
- शैली: Drama
- स्टुडिओ: New Art Film Company, Solitary Sin Corporation, Public Welfare Pictures Corp.
- कीवर्ड: insane asylum, hospital, masturbation, syphilis, sexually transmitted disease, venereal diseases
- संचालक: Frederick Sullivan
- कास्ट: Jack Mulhall, Helene Chadwick, Gordon Griffith, Leo Pierson, Pauline Curley, Charles Spere